How do you trap messages that are sent to a registered window?
I've got a window thats registered with another that sends messages to my window, and I've spied the messages it receives using spyxx, and it says my program's receiving the right messages. Such as:
message: 0x0536 [User-defined:WM_USER+310]
now, how do I get my program to realize its been sent a message? And how do I get the wParam and lParam from it? I've tried using GetMessage and such, and it just halts the program in an endless loop, I probably used it wrong, so ya know, a snippet of code showing how to trap a message wouldn't be a hinderance. =)
Skitchy
message: 0x0536 [User-defined:WM_USER+310]
now, how do I get my program to realize its been sent a message? And how do I get the wParam and lParam from it? I've tried using GetMessage and such, and it just halts the program in an endless loop, I probably used it wrong, so ya know, a snippet of code showing how to trap a message wouldn't be a hinderance. =)
Skitchy
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
People have told me that before, but I really don't understand subclassing lol, every time I see it, its to make bloody multi-line tooltips, or add an icon to the system tray, not exactly what im lookin to do... any help on how to trap messages?
ASKER
AH! dont hit the back button after you post. lol it makes duplicates.
ASKER
AHA! ok, im just really really stupid.
i just use this one to hook into the queue,
Public Sub HookForm(F As Form)
PrevProc = SetWindowLong(F.hWnd, GWL_WNDPROC, AddressOf WindowProc)
End Sub
use this one to unhook,
Public Sub UnHookForm(F As Form)
SetWindowLong F.hWnd, GWL_WNDPROC, PrevProc
End Sub
then add the things to check for here, and do whatever it is i need to do!
Public Function WindowProc(ByVal hWnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
If uMsg = WM_USER + 303 Then
End If
WindowProc = CallWindowProc(PrevProc, hWnd, uMsg, wParam, lParam)
End Function
i just use this one to hook into the queue,
Public Sub HookForm(F As Form)
PrevProc = SetWindowLong(F.hWnd, GWL_WNDPROC, AddressOf WindowProc)
End Sub
use this one to unhook,
Public Sub UnHookForm(F As Form)
SetWindowLong F.hWnd, GWL_WNDPROC, PrevProc
End Sub
then add the things to check for here, and do whatever it is i need to do!
Public Function WindowProc(ByVal hWnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
If uMsg = WM_USER + 303 Then
End If
WindowProc = CallWindowProc(PrevProc, hWnd, uMsg, wParam, lParam)
End Function
:)
ASKER