Method CreateWindowBuffer

System/LemonWM/wm.cpp:83–100

}

int64_t WMInstance::CreateWindowBuffer(int width, int height, WindowBuffer** buffer){
    size_t windowBufferSize = ((sizeof(WindowBuffer) + 0x1F) & (~0x1F)) + ((width * height * 4 + 0x1F) & (~0x1F) /* Round up to 32 bytes */) * 2;

    int64_t windowBufferKey = Lemon::CreateSharedMemory(windowBufferSize, SMEM_FLAGS_SHARED);
    if(windowBufferKey <= 0){
        printf("[LemonWM] Warning: Error %ld obtaining shared memory for window\n", -windowBufferKey);
        return windowBufferKey;
    }

    WindowBuffer* windowBufferInfo = (WindowBuffer*)Lemon::MapSharedMemory(windowBufferKey);
    windowBufferInfo->currentBuffer = 0;
    windowBufferInfo->buffer1Offset = ((sizeof(WindowBuffer) + 0x1F) & (~0x1F));
    windowBufferInfo->buffer2Offset = ((sizeof(WindowBuffer) + 0x1F) & (~0x1F)) + ((width * height * 4 + 0x1F) & (~0x1F) /* Round up to 32 bytes*/);

    *buffer = windowBufferInfo;

    return windowBufferKey;
}

void WMInstance::Poll(){
    Lemon::Message m;