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If the clipboard fails to open on Windows, wait and try again
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@ -436,10 +436,16 @@ PyImaging_GrabClipboardWin32(PyObject *self, PyObject *args) {
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UINT formats[] = {CF_DIB, CF_DIBV5, CF_HDROP, RegisterClipboardFormatA("PNG"), 0};
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LPCSTR format_names[] = {"DIB", "DIB", "file", "png", NULL};
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if (!OpenClipboard(NULL)) {
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// Maybe the clipboard is temporarily in use by another process.
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// Wait and try again
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Sleep(500);
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if (!OpenClipboard(NULL)) {
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PyErr_SetString(PyExc_OSError, "failed to open clipboard");
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return NULL;
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}
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}
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// find best format as set by clipboard owner
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format = 0;
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