Hiding A Window You Have The Hwnd To

[2MuchRiceMakesMeSick]

I have handle/id of a window and I need to create a program that will hide the window and the make it reappear when the user wants.

How can I make the window visible and then later on make it reappear?

Thanks for the help...

[ashukasama]

BOOL ShowWindow(
HWND hWnd,
int nCmdShow
);

hWnd
[in] Handle to the window.
nCmdShow
[in] Specifies how the window is to be shown


SW_HIDE - Hides the window and activates another window.
SW_SHOW - Activates the window and displays it in its current size and position.
SW_SHOWNA - Displays the window in its current state. The active window remains active.
SW_SHOWNORMAL - Activates and displays a window. If the window is minimized or maximized, the system restores it to its original size and position. An application should specify this flag when displaying the window for the first time.

[2MuchRiceMakesMeSick]

thanks for the help...any ideas on why this wont work?


[DllImport("user32")] extern IntPtr FindWindow(String ^ lpClassName, String ^ lpWindowName);
[DllImport("user32")] extern int ShowWindow(IntPtr ^ hwnd, int nCmdShow);




IntPtr ^ iPtr = FindWindow ("Notepad", "Untitled - Notepad");
MessageBox::Show(iPtr->ToString()); // this does return the a positive number
ShowWindow (iPtr,1);

[ashukasama]

sorry i reply you for unmanaged code

now solution :wave:


[DllImport("user32")] extern IntPtr FindWindow(String ^ lpClassName, String ^ lpWindowName);
[DllImport("user32")] extern int ShowWindow(IntPtr ^ hwnd, int nCmdShow);


it should be

[DllImport("user32")]
extern int ShowWindow(IntPtr hwnd, int nCmdShow);



IntPtr ^ iPtr = FindWindow ("Notepad", "Untitled - Notepad");


it should be

IntPtr iPtr = FindWindow ("Notepad", "Untitled - Notepad");

i think you understand what is the problem

:)

[2MuchRiceMakesMeSick]

thanks for the help. I did change those lines and findwindow finds the handle to the window but "ShowWindow (iPtr,1);" does not hide the window. i am stumped on this one.

[2MuchRiceMakesMeSick]

err..... ShowWindow (iPtr,0); hides the window.

Thanks for the help!!!

[2MuchRiceMakesMeSick]

now ... does anyone know how to get the icon out of the system tray???

[ashukasama]

thanks for the help. I did change those lines and findwindow finds the handle to the window but "ShowWindow (iPtr,1);" does not hide the window. i am stumped on this one.

for hiding use
ShowWindow (iPtr,0);

[Krishnaa]

now ... does anyone know how to get the icon out of the system tray???

Is you created there by you ?? You can use Shell_NotifyIcon Function (http://msdn2.microsoft.com/en-us/library/ms647738.aspx) to remove it.

[2MuchRiceMakesMeSick]

no its not created by me..its an external program. will shell notify still work?