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It works with CBS_DROPDOWNLIST style
Otherwise, it is received by the Edit part
KEYDOWN in COMBOBOX does not work
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Daniel de Dios El Ignorado
1
Reputation point
I need to have access to the KEYDOWN event in all the visual controls of the window, and in the instructions indicated on the next page:
https://learn.microsoft.com/en-us/windows/win32/controls/subclass-a-combo-box
Everything works, except that the KEYDOWN event does not fire in any function.
Regards
Daniel de Dios "El Ignorado"
daniel.dedios@Karima ben .com
Windows development | Windows API - Win32
{count} votes
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Sam of Simple Samples 5,546 Reputation points2020-08-11T22:19:26.027+00:00 KEYDOWN is not actually an event, it is a message. You can use Spy++ to determine where the WM_KEYDOWN message is sent. And if the problem stated here was more clear then a more clear answer could be provided.
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Rita Han - MSFT 2,171 Reputation points2020-08-13T07:56:11.797+00:00 @Daniel de Dios El Ignorado You can accept the answer which helps you solve this issue. The verified answer acknowledgement gives confidence to other community users are searching on similar problem. Feel free let me know if you still have any concern about this issue.
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Castorix31 90,686 Reputation points2020-08-11T16:57:45.973+00:00 -
Rita Han - MSFT 2,171 Reputation points
2020-08-12T06:30:21.343+00:00 Hello,
Everything works, except that the KEYDOWN event does not fire in any function.
It seems the wrong window handle is passed to
SetWindowLongPtr. ThehwndEdit1is actual window handle of combobox itself instead of its edit control.Change
pt.x = 1; pt.y = 1;to
pt.x = 3; pt.y = 3;will work.
More precise solution is using GetComboBoxInfo function to get window handle of edit control. hwndItem is the handle to the edit box.
COMBOBOXINFO cbInfo; cbInfo.cbSize = sizeof(COMBOBOXINFO); GetComboBoxInfo(hwndCombo1, &cbInfo); lpfnEditWndProc = (WNDPROC)SetWindowLongPtr(cbInfo.hwndItem, GWLP_WNDPROC, (LONG_PTR)SubClassProc);Thank you!