WM_KILLFOCUS problem

[danginkgo]

I tried but it doesn't work. For WM_SETFOCUS and WM_KILLFOCUS , the wParam is not the main window HWND. Ex. wParam = 0x000209fc This->hwndView = 0x000209ee hWnd = 0x000209ee (HWND parameter of WindowProc) So, I can't register and unregister if I get those messages.

danginkgo

[SandipG]

did you manage to get it working it or not can you paste some code snippets for the same.

Regards, Sandip.

[danginkgo]

This is the callback function for the main (view) window: LRESULT CALLBACK FldViewWndProc (HWND hWnd, UINT wMessage, WPARAM wParam, LPARAM lParam){ PluginInstance* This; ................................................ case WM_KILLFOCUS: This = (PluginInstance*) GetWindowLong(hWnd, 0); if((HWND)wParam==This->hwndView) register hotkeys break; case WM_SETFOCUS: This = (PluginInstance*) GetWindowLong(hWnd, 0); if((HWND)wParam==This->hwndView) unregister hotkeys break; .................................................. }

danginkgo

[SandipG]

are you getting the same values in both cases you mentioned in your previous reply.

Regards, Sandip.

[danginkgo]

In the documentation I found that the wParam for WM_KILLFOCUS is the window handler for the window that receive focus, so I'll get this message in the WindowProc function if I click on the main window. So, I can't use this message, because I want to unregister the hotkeys when the main window loses focus, not immediately before it gains focus. Is it wright what I wrote?

danginkgo

modified on Tuesday, June 24, 2008 7:31 AM

[danginkgo]

yes, the same values

danginkgo

[danginkgo]

The problem is I don't get any message in WindowProc if the window loses focus.

danginkgo

[SandipG]

Hi I tried it in a sample application 1> Main window with two edit controls. 2> In WM_LBUTTONDOWN i called SetFocus(hWnd); I noticed is that if i dont call setfocus explicitly i dont get the WM_SETFOCUS notification. and moreover when i switch between the two edit control i dont get any notification. may be you can try something like following. i dont see any need of using GetWindowLong. case WM_LBUTTONDOWN: SetFocus(hWnd); break; case WM_KILLFOCUS: unregisterkeys; break; case WM_SETFOCUS: registerkeys; break; I hope it helps.

Regards, Sandip.

[danginkgo]

My code is exactly like what you wrote. The problem is I don't get the WM_KILLFOCUS message only when I return to the app window. If the focus is on the app window and I go to other window then I don't get any message.

danginkgo

[SandipG]

No when i go from app window to edit control i get the WM_KILLFOCUS notifiction. also when i call SetFocus() i do get WM_SETFOCUS notification.

Regards, Sandip.

[danginkgo]

It works now. It seems that the problem was that I called MessageBox() function in my code with wrong HWND. That massed up the messages. I took it out of the code and it works fine. Thank you very much for your help.

danginkgo

[SandipG]

Good its working now You are welcome :).

Regards, Sandip.

[David Crow]

danginkgo wrote:

I want to register some values when the window has keyboard focus and unregister the values when the window looses focus.

It sounds like you need to use WM_ACTIVATEAPP instead.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[danginkgo]

I tried using WM_ACTIVATEAPP message, but I don't get it in the main WindowProc function. Do you have any suggestions?

danginkgo