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Fixed Windows relative mouse coordinates when capturing the mouse over RDP

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This commit is contained in:
Sam Lantinga 2019-08-26 17:43:01 -07:00
parent 0c26373842
commit 13c4d5e7e3
1 changed files with 13 additions and 7 deletions
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20
src/video/windows/SDL_windowsevents.c
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@ -586,16 +586,22 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
SDL_SendMouseMotion(data->window, 0, 1, (int)rawmouse->lLastX, (int)rawmouse->lLastY);
} else {
/* synthesize relative moves from the abs position */
static SDL_Point initialMousePoint;
if (initialMousePoint.x == 0 && initialMousePoint.y == 0) {
initialMousePoint.x = rawmouse->lLastX;
initialMousePoint.y = rawmouse->lLastY;
static SDL_Point lastMousePoint;
SDL_bool virtual_desktop = (rawmouse->usFlags & MOUSE_VIRTUAL_DESKTOP) ? SDL_TRUE : SDL_FALSE;
int w = GetSystemMetrics(virtual_desktop ? SM_CXVIRTUALSCREEN : SM_CXSCREEN);
int h = GetSystemMetrics(virtual_desktop ? SM_CYVIRTUALSCREEN : SM_CYSCREEN);
int x = (int)(((float)rawmouse->lLastX / 65535.0f) * w);
int y = (int)(((float)rawmouse->lLastY / 65535.0f) * h);
if (lastMousePoint.x == 0 && lastMousePoint.y == 0) {
lastMousePoint.x = x;
lastMousePoint.y = y;
}
SDL_SendMouseMotion(data->window, 0, 1, (int)(rawmouse->lLastX-initialMousePoint.x), (int)(rawmouse->lLastY-initialMousePoint.y));
SDL_SendMouseMotion(data->window, 0, 1, (int)(x-lastMousePoint.x), (int)(y-lastMousePoint.y));
initialMousePoint.x = rawmouse->lLastX;
initialMousePoint.y = rawmouse->lLastY;
lastMousePoint.x = x;
lastMousePoint.y = y;
}
WIN_CheckRawMouseButtons(rawmouse->usButtonFlags, data);
} else if (isCapture) {