Question

Application running in the background

Asked by: TungVan


Hello,

I want to write a small program to resize window automatically using shorcut key (Alt + 1, Alt + 2, etc)

I know how to get the current handle and use resize function.

However, I don't know how to run this application in background and place the icon in the taskbar, so that when I do Alt+1 on a windows, it will resize it to my resolution. Does anyone know how?


Thanks

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Asked On
2006-08-20 at 15:46:53ID21960963
Tags

application

,

background

Topic

C Programming Language

Participating Experts
2
Points
125
Comments
7

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Answers

 

by: rajeev_devinPosted on 2006-08-20 at 20:28:44ID: 17353485

I hope you are using windows...

To set tray icon you need to use the function
Shell_NotifyIcon
For more help check this
http://www.codeproject.com/shell/systemtray.asp

 

by: rajeev_devinPosted on 2006-08-20 at 20:33:05ID: 17353495

>> how to run this application in background
If it is a console application then from the linker option change
/subsystem:console to /subsystem:windows

Write a winmain function
int WINAPI WinMain(
  HINSTANCE hInstance,      // handle to current instance
  HINSTANCE hPrevInstance,  // handle to previous instance
  LPSTR lpCmdLine,          // command line
  int nCmdShow              // show state
)
{
   main(...) // From this winmain call your console application.
}

 

by: rajeev_devinPosted on 2006-08-20 at 20:33:49ID: 17353498

If it a windows application then hide the window that you have created. Or, better don't create any window.

 

by: rajeev_devinPosted on 2006-08-20 at 20:35:37ID: 17353505

The above method is the simplest one.

Or, if you want to do some more work then make your application a windows service.

 

by: KurtVonPosted on 2006-08-21 at 17:14:25ID: 17360307

If you are just trying to catch the keyboard presses when the program is not the active window, you need to use a keyboard hook.  You need to create a special keyboard callback function and pass it's address to SetWindowsHookEx.  Here's a simple example: http://www.codeproject.com/dll/keyboardhook.asp

Note that this doesn't need to be done in a DLL.  Any running program can create a keyboard hook.

Almost everything you could want to know about the Keyboard Hook callback itself is here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/windowing/hooks/hookreference/hookfunctions/keyboardproc.asp

Hope this helps.

20120131-EE-VQP-002

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