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Use DPI awareness from window

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This commit is contained in:
Andrew Murray 2024-11-05 18:33:25 +11:00
parent 28e5b929f8
commit 9622266c2a
1 changed files with 15 additions and 2 deletions
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17
src/display.c
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@ -316,6 +316,7 @@ PyImaging_DisplayModeWin32(PyObject *self, PyObject *args) {
/* -------------------------------------------------------------------- */ /* -------------------------------------------------------------------- */
/* Windows screen grabber */ /* Windows screen grabber */
typedef HANDLE(__stdcall *Func_GetWindowDpiAwarenessContext)(HANDLE);
typedef HANDLE(__stdcall *Func_SetThreadDpiAwarenessContext)(HANDLE); typedef HANDLE(__stdcall *Func_SetThreadDpiAwarenessContext)(HANDLE);
PyObject * PyObject *
@ -330,6 +331,7 @@ PyImaging_GrabScreenWin32(PyObject *self, PyObject *args) {
PyObject *buffer; PyObject *buffer;
HANDLE dpiAwareness; HANDLE dpiAwareness;
HMODULE user32; HMODULE user32;
Func_GetWindowDpiAwarenessContext GetWindowDpiAwarenessContext_function;
Func_SetThreadDpiAwarenessContext SetThreadDpiAwarenessContext_function; Func_SetThreadDpiAwarenessContext SetThreadDpiAwarenessContext_function;
if (!PyArg_ParseTuple( if (!PyArg_ParseTuple(
@ -358,8 +360,19 @@ PyImaging_GrabScreenWin32(PyObject *self, PyObject *args) {
SetThreadDpiAwarenessContext_function = (Func_SetThreadDpiAwarenessContext SetThreadDpiAwarenessContext_function = (Func_SetThreadDpiAwarenessContext
)GetProcAddress(user32, "SetThreadDpiAwarenessContext"); )GetProcAddress(user32, "SetThreadDpiAwarenessContext");
if (SetThreadDpiAwarenessContext_function != NULL) { if (SetThreadDpiAwarenessContext_function != NULL) {
// DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE = ((DPI_CONTEXT_HANDLE)-3) if (screens == -1) {
dpiAwareness = SetThreadDpiAwarenessContext_function((HANDLE)-3); GetWindowDpiAwarenessContext_function = (Func_GetWindowDpiAwarenessContext
)GetProcAddress(user32, "GetWindowDpiAwarenessContext");
DPI_AWARENESS_CONTEXT dpiAwarenessContext =
GetWindowDpiAwarenessContext_function(wnd);
if (dpiAwarenessContext != NULL) {
dpiAwareness =
SetThreadDpiAwarenessContext_function(dpiAwarenessContext);
}
} else {
// DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE = ((DPI_CONTEXT_HANDLE)-3)
dpiAwareness = SetThreadDpiAwarenessContext_function((HANDLE)-3);
}
} }
if (screens == 1) { if (screens == 1) {