fix wxPopupTransientWindow mouse events with GTK3, also fixes wxOwnerDrawnComboBox, wxDatePickerCtrl. closes #15874

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75687 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
fix a couple GTK assertions about setting negative sizes, closes #15891

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75688 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
use the more appropriate letter 'h' for height

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75689 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix cursor inheritance and busy cursor/global cursor, closes #15801


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75690 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
remove some debugging code inadvertently checked in as part of r75690

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75691 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Added an optimisation when the control is frozen


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75693 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775