-- v2: comtl32: Don't pass PROPSHEETPAGE to SetWindowSubclass in PROPSHEET_CreatePage. comctl32/tests: Test passing PropertySheetPage as HPROPSHEETPAGE. comctl32/tests: Add more PROPSHEETPAGE tests inside callback. comctl32/tests: Test passing extra data in PROPSHEETPAGE structure. comctl32/tests: Test PROPERTYSHEETPAGE passed in WM_INITDIALOG.