How to refresh a new change in Window??

[give2get]

Which's API help refresh a new change similar click Apply button?

 

[BTecho]

Hi

You can try,

LockWindowUpdate(SomeHWND);

//Do some drawing here

LockWindowUpdate(NULL);

or

BOOL UpdateWindow(
HWND hWnd // handle of window
);

The UpdateWindow function updates the client area of the specified window by sending a WM_PAINT message to the window if the window's update region is not empty. The function sends a WM_PAINT message directly to the window procedure of the specified window, bypassing the application queue. If the update region is empty, no message is sent.

 

[give2get]

Thanks any way, but this method have only effect with my own program. I'm trying write a Program to change Appearancy of windows but not require to restart windows.
Please help me.

 

[sandiro]

You ca try to replace implementation/behaviour for default (global) window classes in a dll and to make this dll to be implicitely loaded by all process. See documentation for RegisterClassEx, "System Classes", "Application Global Classes", CS_GLOBALCLASS , "How the System Locates a Window Class" in MSDN PlatformSDK|UserInterface|Windows user interface ....

To make your dll to be loaded by all process in "
Windows NT/2000/XP: To create a class that can be used in every process, create the window class in a .dll and load the .dll in every process. To load the .dll in every process, add its name to the AppInit_DLLs value in following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Windows

Whenever a process starts, the system loads the specified .dll in the context of the newly started process before calling its entry-point function. The .dll must register the class during its initialization procedure and must specify the CS_GLOBALCLASS style.

"

But if you need also already running processes to use same dll it may be a little difficult.