### Get Current DPMS Status and Timeouts

Source: https://context7.com/xorg/lib/llms.txt

Retrieves the current DPMS power state (enabled/disabled, current level) and configured timeouts for standby, suspend, and off modes. Assumes DPMS is initialized.

```c
/* Get current DPMS state and timeouts */
void print_dpms_status(Display *dpy) {
    CARD16 power_level;
    BOOL state;
    CARD16 standby, suspend, off;

    DPMSInfo(dpy, &power_level, &state);
    printf("DPMS is %s\n", state ? "enabled" : "disabled");

    const char *level_str;
    switch (power_level) {
        case DPMSModeOn:      level_str = "On"; break;
        case DPMSModeStandby: level_str = "Standby"; break;
        case DPMSModeSuspend: level_str = "Suspend"; break;
        case DPMSModeOff:     level_str = "Off"; break;
        default:              level_str = "Unknown"; break;
    }
    printf("Current power level: %s\n", level_str);

    DPMSGetTimeouts(dpy, &standby, &suspend, &off);
    printf("Timeouts - Standby: %ds, Suspend: %ds, Off: %ds\n",
           standby, suspend, off);
}
```

--------------------------------

### Create and Use Fence

Source: https://context7.com/xorg/lib/llms.txt

Demonstrates creating a Sync fence, checking its triggered state, manually triggering it, resetting it, and finally destroying it. Fences are used for synchronization between X clients.

```c
/* Create and use a fence for synchronization */
void fence_example(Display *dpy, Window win) {
    XSyncFence fence;
    Bool triggered;

    /* Create fence in non-triggered state */
    fence = XSyncCreateFence(dpy, win, False);
    printf("Created fence %lu\n", fence);

    /* Check fence state */
    XSyncQueryFence(dpy, fence, &triggered);
    printf("Fence triggered: %s\n", triggered ? "yes" : "no");

    /* Trigger the fence */
    XSyncTriggerFence(dpy, fence);
    XSyncQueryFence(dpy, fence, &triggered);
    printf("After trigger: %s\n", triggered ? "yes" : "no");

    /* Reset for reuse */
    XSyncResetFence(dpy, fence);

    /* Clean up */
    XSyncDestroyFence(dpy, fence);
}
```

--------------------------------

### Create and Use Custom Counter

Source: https://context7.com/xorg/lib/llms.txt

Demonstrates creating a custom counter, setting its value, querying it, and modifying it. Includes cleanup by destroying the counter.

```c
/* Create and use a custom counter */
void counter_example(Display *dpy) {
    XSyncCounter counter;
    XSyncValue value, new_value, result;

    /* Create counter with initial value 0 */
    XSyncIntToValue(&value, 0);
    counter = XSyncCreateCounter(dpy, value);
    printf("Created counter %lu\n", counter);

    /* Set counter to 100 */
    XSyncIntToValue(&new_value, 100);
    XSyncSetCounter(dpy, counter, new_value);

    /* Query current value */
    XSyncQueryCounter(dpy, counter, &result);
    printf("Counter value: %d\n", XSyncValueLow32(result));

    /* Increment counter by 50 */
    XSyncIntToValue(&value, 50);
    XSyncChangeCounter(dpy, counter, value);

    XSyncQueryCounter(dpy, counter, &result);
    printf("Counter value after change: %d\n", XSyncValueLow32(result));

    /* Clean up */
    XSyncDestroyCounter(dpy, counter);
}
```

--------------------------------

### Initialize Security Extension

Source: https://context7.com/xorg/lib/llms.txt

Checks for the availability of the Security extension and retrieves its version. Include X11/extensions/security.h.

```c
#include <X11/Xlib.h>
#include <X11/extensions/security.h>

/* Query Security extension */
Bool init_security(Display *dpy) {
    int major, minor;

    if (!XSecurityQueryExtension(dpy, &major, &minor)) {
        fprintf(stderr, "Security extension not available\n");
        return False;
    }

    printf("Security extension version %d.%d\n", major, minor);
    return True;
}
```

--------------------------------

### Initialize Multibuffer Extension

Source: https://context7.com/xorg/lib/llms.txt

Initializes the Multibuffer extension and queries its version. Returns false if the extension is not available.

```c
#include <X11/Xlib.h>
#include <X11/extensions/multibuf.h>

/* Initialize multibuffer extension */
Bool init_multibuf(Display *dpy, int *event_base, int *error_base) {
    int major, minor;

    if (!XmbufQueryExtension(dpy, event_base, error_base)) {
        fprintf(stderr, "Multibuffer extension not available\n");
        return False;
    }

    XmbufGetVersion(dpy, &major, &minor);
    printf("Multibuffer version %d.%d\n", major, minor);
    return True;
}
```

--------------------------------

### Implement Custom X11 Extension Handler

Source: https://context7.com/xorg/lib/llms.txt

Uses extutil macros to manage display lifecycle and verify extension availability for custom X11 extensions.

```c
#include <X11/Xlib.h>
#include <X11/extensions/extutil.h>

/* Example: Creating a custom extension handler */

/* Global extension info structure */
static XExtensionInfo *my_ext_info = NULL;
static const char *my_ext_name = "MyExtension";

/* Extension hooks for display lifecycle */
static XExtensionHooks my_ext_hooks = {
    NULL,               /* create_gc */
    NULL,               /* copy_gc */
    NULL,               /* flush_gc */
    NULL,               /* free_gc */
    NULL,               /* create_font */
    NULL,               /* free_font */
    my_close_display,   /* close_display */
    NULL,               /* wire_to_event */
    NULL,               /* event_to_wire */
    NULL,               /* error */
    NULL                /* error_string */
};

/* Generate find_display function using macro */
static XEXT_GENERATE_FIND_DISPLAY(find_display, my_ext_info,
                                   my_ext_name, &my_ext_hooks,
                                   0, NULL)

/* Generate close_display function using macro */
static XEXT_GENERATE_CLOSE_DISPLAY(my_close_display, my_ext_info)

/* Check if extension is present for a display */
Bool MyExtensionPresent(Display *dpy) {
    XExtDisplayInfo *info = find_display(dpy);
    return XextHasExtension(info);
}

/* Example extension function with error checking */
Status MyExtensionDoSomething(Display *dpy, Window win) {
    XExtDisplayInfo *info = find_display(dpy);

    /* Check extension is present */
    XextCheckExtension(dpy, info, my_ext_name, 0);

    /* Extension is available, proceed with protocol request */
    LockDisplay(dpy);

    /* ... send protocol request ... */

    UnlockDisplay(dpy);
    SyncHandle();

    return 1;
}

/* Clean up extension on program exit */
void MyExtensionCleanup(void) {
    if (my_ext_info) {
        XextDestroyExtension(my_ext_info);
        my_ext_info = NULL;
    }
}
```

--------------------------------

### Initialize EVI Extension

Source: https://context7.com/xorg/lib/llms.txt

Checks for the availability of the Extended Visual Information (EVI) extension and retrieves its version. Include X11/extensions/XEVI.h.

```c
#include <X11/Xlib.h>
#include <X11/extensions/XEVI.h>

/* Query EVI extension */
Bool init_evi(Display *dpy) {
    int major, minor;

    if (!XeviQueryExtension(dpy)) {
        fprintf(stderr, "EVI extension not available\n");
        return False;
    }

    XeviQueryVersion(dpy, &major, &minor);
    printf("EVI version %d.%d\n", major, minor);
    return True;
}
```

--------------------------------

### Initialize Sync Extension

Source: https://context7.com/xorg/lib/llms.txt

Initializes the Sync extension and retrieves its major and minor version numbers. Returns false if the extension is not available or initialization fails.

```c
#include <X11/Xlib.h>
#include <X11/extensions/sync.h>

/* Initialize Sync extension */
Bool init_sync_extension(Display *dpy, int *event_base, int *error_base) {
    int major, minor;

    if (!XSyncQueryExtension(dpy, event_base, error_base)) {
        fprintf(stderr, "Sync extension not available\n");
        return False;
    }

    if (!XSyncInitialize(dpy, &major, &minor)) {
        fprintf(stderr, "Failed to initialize Sync extension\n");
        return False;
    }

    printf("Sync extension version %d.%d\n", major, minor);
    return True;
}
```

--------------------------------

### Create Triple Buffer Context

Source: https://context7.com/xorg/lib/llms.txt

Creates a context for managing triple buffering, initializing three off-screen buffers for a window. Returns NULL if fewer than two buffers can be created.

```c
/* Create triple-buffered window for animation */
typedef struct {
    Display *dpy;
    Window window;
    Multibuffer buffers[3];
    int num_buffers;
    int current;
    GC gc;
} TripleBufferContext;

TripleBufferContext *create_triple_buffer(Display *dpy, Window win) {
    TripleBufferContext *ctx = malloc(sizeof(TripleBufferContext));

    ctx->dpy = dpy;
    ctx->window = win;
    ctx->current = 0;

    /* Create 3 buffers with background update action */
    ctx->num_buffers = XmbufCreateBuffers(dpy, win, 3,
                                          MultibufferUpdateActionBackground,
                                          MultibufferUpdateHintFrequent,
                                          ctx->buffers);

    if (ctx->num_buffers < 2) {
        fprintf(stderr, "Could only create %d buffers\n", ctx->num_buffers);
        if (ctx->num_buffers > 0) {
            XmbufDestroyBuffers(dpy, ctx->window);
        }
        free(ctx);
        return NULL;
    }

    printf("Created %d buffers\n", ctx->num_buffers);
    ctx->gc = XCreateGC(dpy, ctx->buffers[0], 0, NULL);

    return ctx;
}
```

--------------------------------

### Query Screen Buffer Information

Source: https://context7.com/xorg/lib/llms.txt

Retrieves and prints information about available mono and stereo buffer configurations for a given screen.

```c
/* Query screen buffer capabilities */
void query_buffer_info(Display *dpy, Window win) {
    XmbufBufferInfo *mono_info, *stereo_info;
    int n_mono, n_stereo;

    XmbufGetScreenInfo(dpy, win, &n_mono, &mono_info, 
                       &n_stereo, &stereo_info);

    printf("Mono buffer configurations: %d\n", n_mono);
    for (int i = 0; i < n_mono; i++) {
        printf("  Visual 0x%lx: max %d buffers, depth %d\n",
               mono_info[i].visualid,
               mono_info[i].max_buffers,
               mono_info[i].depth);
    }

    if (n_stereo > 0) {
        printf("Stereo buffer configurations: %d\n", n_stereo);
    }

    if (mono_info) XFree(mono_info);
    if (stereo_info) XFree(stereo_info);
}
```

--------------------------------

### Implement Double Buffering with Xdbe

Source: https://context7.com/xorg/lib/llms.txt

Provides functions to query DBE availability, allocate back buffers, perform drawing operations, and swap buffers for X11 windows.

```c
#include <X11/Xlib.h>
#include <X11/extensions/Xdbe.h>

/* Check DBE availability and get visual info */
Bool setup_double_buffering(Display *dpy, Window root) {
    int major, minor;
    XdbeScreenVisualInfo *info;
    int num_screens = 1;
    Drawable screens[1];

    if (!XdbeQueryExtension(dpy, &major, &minor)) {
        fprintf(stderr, "DBE extension not available\n");
        return False;
    }
    printf("DBE version %d.%d\n", major, minor);

    /* Get visuals that support double buffering */
    screens[0] = root;
    info = XdbeGetVisualInfo(dpy, screens, &num_screens);

    if (info && info->count > 0) {
        printf("Found %d double-buffer capable visuals:\n", info->count);
        for (int i = 0; i < info->count; i++) {
            printf("  Visual 0x%lx, depth %d, perf level %d\n",
                   info->visinfo[i].visual,
                   info->visinfo[i].depth,
                   info->visinfo[i].perflevel);
        }
        XdbeFreeVisualInfo(info);
        return True;
    }

    return False;
}

/* Create double-buffered window rendering context */
typedef struct {
    Display *dpy;
    Window window;
    XdbeBackBuffer back_buffer;
    GC gc;
} DoubleBufferContext;

DoubleBufferContext *create_double_buffer(Display *dpy, Window win) {
    DoubleBufferContext *ctx = malloc(sizeof(DoubleBufferContext));

    ctx->dpy = dpy;
    ctx->window = win;

    /* Allocate back buffer with undefined swap action */
    ctx->back_buffer = XdbeAllocateBackBufferName(dpy, win, XdbeUndefined);
    if (!ctx->back_buffer) {
        free(ctx);
        return NULL;
    }

    /* Create graphics context for drawing */
    ctx->gc = XCreateGC(dpy, ctx->back_buffer, 0, NULL);

    return ctx;
}

/* Draw to the back buffer */
void draw_frame(DoubleBufferContext *ctx, int frame_num) {
    XWindowAttributes attr;
    XGetWindowAttributes(ctx->dpy, ctx->window, &attr);

    /* Clear back buffer */
    XSetForeground(ctx->dpy, ctx->gc, BlackPixel(ctx->dpy, 0));
    XFillRectangle(ctx->dpy, ctx->back_buffer, ctx->gc,
                   0, 0, attr.width, attr.height);

    /* Draw animation frame */
    XSetForeground(ctx->dpy, ctx->gc, WhitePixel(ctx->dpy, 0));
    int x = (frame_num * 5) % attr.width;
    XFillRectangle(ctx->dpy, ctx->back_buffer, ctx->gc,
                   x, attr.height/2 - 25, 50, 50);
}

/* Swap front and back buffers */
void swap_buffers(DoubleBufferContext *ctx) {
    XdbeSwapInfo swap_info;

    swap_info.swap_window = ctx->window;
    swap_info.swap_action = XdbeUndefined;

    XdbeSwapBuffers(ctx->dpy, &swap_info, 1);
    XSync(ctx->dpy, False);
}

/* Clean up double buffer resources */
void destroy_double_buffer(DoubleBufferContext *ctx) {
    XdbeDeallocateBackBufferName(ctx->dpy, ctx->back_buffer);
    XFreeGC(ctx->dpy, ctx->gc);
    free(ctx);
}
```

--------------------------------

### Configure DPMS Timeouts and Enable

Source: https://context7.com/xorg/lib/llms.txt

Sets the inactivity timeouts for DPMS standby, suspend, and off states in seconds, and then enables DPMS power management. Ensure DPMS is capable before calling.

```c
/* Configure DPMS timeouts and enable */
void configure_dpms(Display *dpy, int standby_secs,
                    int suspend_secs, int off_secs) {
    /* Set timeouts (in seconds) */
    DPMSSetTimeouts(dpy, standby_secs, suspend_secs, off_secs);

    /* Enable DPMS */
    DPMSEnable(dpy);

    printf("DPMS configured: standby=%ds, suspend=%ds, off=%ds\n",
           standby_secs, suspend_secs, off_secs);
}
```

--------------------------------

### Check DPMS Support and Version

Source: https://context7.com/xorg/lib/llms.txt

Verifies if the DPMS extension is available and retrieves its version. Requires including X11/Xlib.h and X11/extensions/dpms.h.

```c
#include <X11/Xlib.h>
#include <X11/extensions/dpms.h>

/* Check DPMS support and get version */
Bool check_dpms_support(Display *dpy) {
    int event_base, error_base;
    int major, minor;

    if (!DPMSQueryExtension(dpy, &event_base, &error_base)) {
        fprintf(stderr, "DPMS extension not available\n");
        return False;
    }

    DPMSGetVersion(dpy, &major, &minor);
    printf("DPMS version %d.%d\n", major, minor);

    if (DPMSCapable(dpy)) {
        printf("Display is DPMS capable\n");
        return True;
    }

    printf("Display does not support DPMS\n");
    return False;
}
```

--------------------------------

### Print Extended Visual Information for All Visuals

Source: https://context7.com/xorg/lib/llms.txt

Retrieves and prints detailed information for all visuals on the default screen, including transparency, colormap capabilities, and conflicts. Requires X11/extensions/XEVI.h. Frees the allocated memory for visual info.

```c
#include <X11/Xlib.h>
#include <X11/extensions/XEVI.h>

/* Get extended info for all visuals on default screen */
void print_visual_info(Display *dpy) {
    ExtendedVisualInfo *evi_info;
    int n_info;

    /* Pass NULL to get all visuals */
    if (XeviGetVisualInfo(dpy, NULL, 0, &evi_info, &n_info) != Success) {
        fprintf(stderr, "Failed to get visual info\n");
        return;
    }

    printf("Extended info for %d visuals:\n", n_info);
    for (int i = 0; i < n_info; i++) {
        printf("\nVisual 0x%lx (screen %d):\n",
               evi_info[i].core_visual_id, evi_info[i].screen);
        printf("  Level: %d\n", evi_info[i].level);

        const char *trans_type;
        switch (evi_info[i].transparency_type) {
            case 0:  trans_type = "None"; break;
            case 1:  trans_type = "Pixel"; break;
            case 2:  trans_type = "Mask"; break;
            default: trans_type = "Unknown"; break;
        }
        printf("  Transparency: %s", trans_type);
        if (evi_info[i].transparency_type != 0) {
            printf(" (value: %u)", evi_info[i].transparency_value);
        }
        printf("\n");

        printf("  Hardware colormaps: %u-%u\n",
               evi_info[i].min_hw_colormaps,
               evi_info[i].max_hw_colormaps);

        if (evi_info[i].num_colormap_conflicts > 0) {
            printf("  Colormap conflicts: %u\n",
                   evi_info[i].num_colormap_conflicts);
        }
    }

    XFree(evi_info);
}
```

--------------------------------

### Implement MIT-SHM Shared Memory Operations

Source: https://context7.com/xorg/lib/llms.txt

Provides functions to query extension availability, allocate shared memory segments for XImages, perform fast blitting, and clean up resources. Requires linking against X11 and Xext libraries.

```c
#include <X11/Xlib.h>
#include <X11/extensions/XShm.h>
#include <sys/ipc.h>
#include <sys/shm.h>

/* Check if shared memory extension is available */
Bool use_shared_memory(Display *dpy) {
    int major, minor;
    Bool shared_pixmaps;

    if (!XShmQueryExtension(dpy)) {
        fprintf(stderr, "MIT-SHM extension not available\n");
        return False;
    }

    XShmQueryVersion(dpy, &major, &minor, &shared_pixmaps);
    printf("MIT-SHM version %d.%d, shared pixmaps: %s\n",
           major, minor, shared_pixmaps ? "yes" : "no");
    return True;
}

/* Create a shared memory XImage for fast blitting */
XImage *create_shm_image(Display *dpy, Visual *visual,
                         unsigned int depth, unsigned int width,
                         unsigned int height, XShmSegmentInfo *shminfo) {
    XImage *image;

    /* Create the XImage structure */
    image = XShmCreateImage(dpy, visual, depth, ZPixmap, NULL,
                            shminfo, width, height);
    if (!image) return NULL;

    /* Allocate shared memory segment */
    shminfo->shmid = shmget(IPC_PRIVATE,
                           image->bytes_per_line * image->height,
                           IPC_CREAT | 0777);
    if (shminfo->shmid < 0) {
        XDestroyImage(image);
        return NULL;
    }

    /* Attach shared memory to process */
    shminfo->shmaddr = image->data = shmat(shminfo->shmid, 0, 0);
    shminfo->readOnly = False;

    /* Attach shared memory to X server */
    if (!XShmAttach(dpy, shminfo)) {
        shmdt(shminfo->shmaddr);
        shmctl(shminfo->shmid, IPC_RMID, 0);
        XDestroyImage(image);
        return NULL;
    }

    /* Mark segment for deletion when all processes detach */
    shmctl(shminfo->shmid, IPC_RMID, 0);

    return image;
}

/* Put shared memory image to window */
void draw_shm_image(Display *dpy, Window win, GC gc,
                    XImage *image, int x, int y) {
    XShmPutImage(dpy, win, gc, image,
                 0, 0,           /* src_x, src_y */
                 x, y,           /* dst_x, dst_y */
                 image->width, image->height,
                 False);         /* send_event */
    XSync(dpy, False);
}

/* Clean up shared memory resources */
void cleanup_shm_image(Display *dpy, XImage *image,
                       XShmSegmentInfo *shminfo) {
    XShmDetach(dpy, shminfo);
    XDestroyImage(image);
    shmdt(shminfo->shmaddr);
}
```

--------------------------------

### Create Authorization for Untrusted Client

Source: https://context7.com/xorg/lib/llms.txt

Generates an authorization token for an untrusted client with a specified timeout. Requires X11/extensions/security.h. The generated authorization must be explicitly revoked later.

```c
#include <X11/Xlib.h>
#include <X11/extensions/security.h>

/* Generate authorization for untrusted client */
Xauth *create_untrusted_auth(Display *dpy, unsigned int timeout_secs) {
    Xauth *auth_in, *auth_out;
    XSecurityAuthorizationAttributes attr;
    XSecurityAuthorization auth_id;
    unsigned long mask = 0;

    /* Allocate input auth structure */
    auth_in = XSecurityAllocXauth();
    auth_in->name = "MIT-MAGIC-COOKIE-1";
    auth_in->name_length = strlen(auth_in->name);

    /* Set untrusted level with timeout */
    attr.trust_level = XSecurityClientUntrusted;
    mask |= XSecurityTrustLevel;

    attr.timeout = timeout_secs;
    mask |= XSecurityTimeout;

    /* Generate the authorization */
    auth_out = XSecurityGenerateAuthorization(dpy, auth_in, mask,
                                               &attr, &auth_id);

    if (auth_out) {
        printf("Generated auth ID %lu for untrusted client\n", auth_id);
        printf("Auth data length: %d bytes\n", auth_out->data_length);
    }

    XSecurityFreeXauth(auth_in);
    return auth_out;
}
```

--------------------------------

### List System Counters

Source: https://context7.com/xorg/lib/llms.txt

Retrieves and prints a list of available system-wide synchronization counters. Frees the list after use.

```c
/* List available system counters */
void list_system_counters(Display *dpy) {
    XSyncSystemCounter *counters;
    int n_counters;

    counters = XSyncListSystemCounters(dpy, &n_counters);
    printf("Found %d system counters:\n", n_counters);

    for (int i = 0; i < n_counters; i++) {
        printf("  %s (ID: %lu)\n", counters[i].name, counters[i].counter);
    }

    XSyncFreeSystemCounterList(counters);
}
```

--------------------------------

### XCup Extension Operations

Source: https://context7.com/xorg/lib/llms.txt

Functions for querying the XCup extension, retrieving reserved colormap entries, and storing colors with sharing support.

```c
#include <X11/Xlib.h>
#include <X11/extensions/Xcup.h>

/* Query XCup extension */
Bool init_xcup(Display *dpy) {
    int major, minor;

    if (!XcupQueryVersion(dpy, &major, &minor)) {
        fprintf(stderr, "XCup extension not available\n");
        return False;
    }

    printf("XCup version %d.%d\n", major, minor);
    return True;
}

/* Get reserved colormap entries for a screen */
void print_reserved_colors(Display *dpy, int screen) {
    XColor *colors;
    int n_colors;

    if (XcupGetReservedColormapEntries(dpy, screen, &colors, &n_colors)
        != Success) {
        fprintf(stderr, "Failed to get reserved entries\n");
        return;
    }

    printf("Reserved colormap entries for screen %d: %d\n", screen, n_colors);
    for (int i = 0; i < n_colors; i++) {
        printf("  Pixel %lu: RGB(%u, %u, %u)\n",
               colors[i].pixel,
               colors[i].red >> 8,
               colors[i].green >> 8,
               colors[i].blue >> 8);
    }

    XFree(colors);
}

/* Store colors with sharing support */
void store_shared_colors(Display *dpy, Colormap cmap) {
    XColor colors[3];

    /* Define colors to store */
    colors[0].red = 65535; colors[0].green = 0; colors[0].blue = 0;
    colors[1].red = 0; colors[1].green = 65535; colors[1].blue = 0;
    colors[2].red = 0; colors[2].green = 0; colors[2].blue = 65535;

    colors[0].flags = colors[1].flags = colors[2].flags = DoRed|DoGreen|DoBlue;

    /* XcupStoreColors tries to use existing matching entries */
    if (XcupStoreColors(dpy, cmap, colors, 3) == Success) {
        printf("Stored colors at pixels: %lu, %lu, %lu\n",
               colors[0].pixel, colors[1].pixel, colors[2].pixel);
    }
}
```

--------------------------------

### XGE Extension Operations

Source: https://context7.com/xorg/lib/llms.txt

Functions for querying the XGE extension version and configuring generic event masks.

```c
#include <X11/Xlib.h>
#include <X11/extensions/Xge.h>

/* Query XGE extension */
Bool init_xge(Display *dpy) {
    int event_base, error_base;
    int major, minor;

    if (!XGEQueryExtension(dpy, &event_base, &error_base)) {
        fprintf(stderr, "XGE extension not available\n");
        return False;
    }

    if (!XGEQueryVersion(dpy, &major, &minor)) {
        fprintf(stderr, "Failed to query XGE version\n");
        return False;
    }

    printf("XGE version %d.%d\n", major, minor);
    printf("Event base: %d, Error base: %d\n", event_base, error_base);
    return True;
}

/* Example generic event mask setup */
void setup_generic_events(XGenericEventMask *mask,
                          unsigned char extension,
                          unsigned int event_mask) {
    mask->extension = extension;
    mask->pad0 = 0;
    mask->pad1 = 0;
    mask->evmask = event_mask;
}
```

--------------------------------

### Display Current Buffer

Source: https://context7.com/xorg/lib/llms.txt

Displays the content of the current off-screen buffer and advances the buffer index for the next frame.

```c
/* Display the current buffer */
void display_buffer(TripleBufferContext *ctx) {
    XmbufDisplayBuffers(ctx->dpy, 1, &ctx->buffers[ctx->current], 0, 0);
    ctx->current = (ctx->current + 1) % ctx->num_buffers;
}
```

--------------------------------

### Query Specific Visual Information

Source: https://context7.com/xorg/lib/llms.txt

Retrieves and prints specific extended information for a given visual ID. Requires X11/extensions/XEVI.h. Frees the allocated memory for visual info.

```c
#include <X11/Xlib.h>
#include <X11/extensions/XEVI.h>

/* Get info for specific visual */
void query_visual(Display *dpy, VisualID visual_id) {
    ExtendedVisualInfo *info;
    VisualID query = visual_id;
    int n_info;

    if (XeviGetVisualInfo(dpy, &query, 1, &info, &n_info) == Success
        && n_info > 0) {
        printf("Visual 0x%lx: level=%d, hw_colormaps=%u-%u\n",
               visual_id, info->level,
               info->min_hw_colormaps, info->max_hw_colormaps);
        XFree(info);
    }
}
```

--------------------------------

### Turn Off Display Immediately

Source: https://context7.com/xorg/lib/llms.txt

A convenience function to enable DPMS and immediately force the display into the DPMSModeOff state.

```c
/* Example: Turn off display immediately */
void turn_off_display(Display *dpy) {
    DPMSEnable(dpy);
    DPMSForceLevel(dpy, DPMSModeOff);
}
```

--------------------------------

### Manage X11 Shape Extension

Source: https://context7.com/xorg/lib/llms.txt

Functions for querying extension availability, applying circular or rectangular masks, monitoring events, and retrieving current shape data.

```c
#include <X11/Xlib.h>
#include <X11/extensions/shape.h>

/* Query if shape extension is available */
Bool check_shape_extension(Display *dpy) {
    int event_base, error_base;
    int major, minor;

    if (!XShapeQueryExtension(dpy, &event_base, &error_base)) {
        fprintf(stderr, "Shape extension not available\n");
        return False;
    }

    XShapeQueryVersion(dpy, &major, &minor);
    printf("Shape extension version %d.%d\n", major, minor);
    return True;
}

/* Create a circular window shape */
void make_circular_window(Display *dpy, Window win,
                          int width, int height) {
    XGCValues gcv;
    Pixmap shape_mask;
    GC gc;

    /* Create a pixmap for the shape mask */
    shape_mask = XCreatePixmap(dpy, win, width, height, 1);
    gc = XCreateGC(dpy, shape_mask, 0, &gcv);

    /* Clear the pixmap (transparent) */
    XSetForeground(dpy, gc, 0);
    XFillRectangle(dpy, shape_mask, gc, 0, 0, width, height);

    /* Draw filled circle (opaque region) */
    XSetForeground(dpy, gc, 1);
    XFillArc(dpy, shape_mask, gc, 0, 0, width, height, 0, 360*64);

    /* Apply shape to window bounding region */
    XShapeCombineMask(dpy, win, ShapeBounding, 0, 0, shape_mask, ShapeSet);

    XFreeGC(dpy, gc);
    XFreePixmap(dpy, shape_mask);
}

/* Create window with custom rectangular cutouts */
void make_window_with_hole(Display *dpy, Window win,
                           int width, int height,
                           int hole_x, int hole_y,
                           int hole_w, int hole_h) {
    XRectangle rects[4];

    /* Define rectangles around the hole */
    rects[0] = (XRectangle){0, 0, width, hole_y};                    /* Top */
    rects[1] = (XRectangle){0, hole_y, hole_x, hole_h};              /* Left */
    rects[2] = (XRectangle){hole_x + hole_w, hole_y,
                            width - hole_x - hole_w, hole_h};         /* Right */
    rects[3] = (XRectangle){0, hole_y + hole_h,
                            width, height - hole_y - hole_h};         /* Bottom */

    XShapeCombineRectangles(dpy, win, ShapeBounding, 0, 0,
                            rects, 4, ShapeSet, Unsorted);
}

/* Monitor shape changes on a window */
void setup_shape_events(Display *dpy, Window win) {
    XShapeSelectInput(dpy, win, ShapeNotifyMask);
}

/* Get the current shape rectangles */
void print_window_shape(Display *dpy, Window win) {
    XRectangle *rects;
    int count, ordering;

    rects = XShapeGetRectangles(dpy, win, ShapeBounding, &count, &ordering);
    if (rects) {
        printf("Window has %d shape rectangles:\n", count);
        for (int i = 0; i < count; i++) {
            printf("  [%d] x=%d y=%d w=%d h=%d\n", i,
                   rects[i].x, rects[i].y,
                   rects[i].width, rects[i].height);
        }
        XFree(rects);
    }
}
```

--------------------------------

### Create Threshold Alarm

Source: https://context7.com/xorg/lib/llms.txt

Creates a Sync alarm that triggers when a specified counter reaches a certain threshold. Configures the alarm to auto-reset and request events upon triggering.

```c
/* Create an alarm that triggers when counter reaches threshold */
XSyncAlarm create_threshold_alarm(Display *dpy, XSyncCounter counter,
                                   int threshold) {
    XSyncAlarmAttributes attr;
    unsigned long mask = 0;

    /* Set trigger counter */
    attr.trigger.counter = counter;
    mask |= XSyncCACounter;

    /* Trigger when counter >= threshold */
    attr.trigger.value_type = XSyncAbsolute;
    mask |= XSyncCAValueType;

    XSyncIntToValue(&attr.trigger.wait_value, threshold);
    mask |= XSyncCAValue;

    attr.trigger.test_type = XSyncPositiveComparison;
    mask |= XSyncCATestType;

    /* Auto-reset delta */
    XSyncIntToValue(&attr.delta, 1);
    mask |= XSyncCADelta;

    /* Request events */
    attr.events = True;
    mask |= XSyncCAEvents;

    return XSyncCreateAlarm(dpy, mask, &attr);
}
```

--------------------------------

### Render Animation Frame to Buffer

Source: https://context7.com/xorg/lib/llms.txt

Renders a single animation frame to the current off-screen buffer. Clears the buffer before drawing.

```c
/* Render animation frame to current buffer */
void render_to_buffer(TripleBufferContext *ctx, int frame) {
    Multibuffer buf = ctx->buffers[ctx->current];
    XWindowAttributes attr;

    XGetWindowAttributes(ctx->dpy, ctx->window, &attr);

    /* Clear buffer */
    XSetForeground(ctx->dpy, ctx->gc, BlackPixel(ctx->dpy, 0));
    XmbufClearBufferArea(ctx->dpy, buf, 0, 0, attr.width, attr.height, False);

    /* Draw animated content */
    XSetForeground(ctx->dpy, ctx->gc, WhitePixel(ctx->dpy, 0));
    int x = (int)(attr.width/2 + sin(frame * 0.1) * 100);
    int y = (int)(attr.height/2 + cos(frame * 0.1) * 100);
    XFillArc(ctx->dpy, buf, ctx->gc, x-25, y-25, 50, 50, 0, 360*64);
}
```

--------------------------------

### Force Display Power State

Source: https://context7.com/xorg/lib/llms.txt

Immediately forces the display to a specific DPMS power level (e.g., DPMSModeOn, DPMSModeOff). XSync is called to ensure the command is sent.

```c
/* Force display to specific power state */
void set_display_power(Display *dpy, CARD16 level) {
    DPMSForceLevel(dpy, level);
    XSync(dpy, False);
}
```

--------------------------------

### Destroy Triple Buffer Context

Source: https://context7.com/xorg/lib/llms.txt

Frees all resources associated with the triple buffer context, including the off-screen buffers and graphics context.

```c
/* Clean up */
void destroy_triple_buffer(TripleBufferContext *ctx) {
    XmbufDestroyBuffers(ctx->dpy, ctx->window);
    XFreeGC(ctx->dpy, ctx->gc);
    free(ctx);
}
```

--------------------------------

### Revoke Authorization

Source: https://context7.com/xorg/lib/llms.txt

Revokes a previously generated authorization token using its ID. Requires X11/extensions/security.h.

```c
#include <X11/Xlib.h>
#include <X11/extensions/security.h>

/* Revoke a previously generated authorization */
void revoke_authorization(Display *dpy, XSecurityAuthorization auth_id) {
    if (XSecurityRevokeAuthorization(dpy, auth_id)) {
        printf("Authorization %lu revoked\n", auth_id);
    } else {
        fprintf(stderr, "Failed to revoke authorization\n");
    }
}
```

--------------------------------

### Disable DPMS Power Management

Source: https://context7.com/xorg/lib/llms.txt

Disables the DPMS power management system for the display. This will prevent the display from entering standby, suspend, or off states automatically or via DPMS commands.

```c
/* Disable DPMS power management */
void disable_dpms(Display *dpy) {
    DPMSDisable(dpy);
    printf("DPMS disabled\n");
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.