WinInitialize

WinInitialize( flOptions );

Initializes the PM facilities to be used by an application.

Usage Explanation

This function must be the first PM function called by any application thread intending to use PM or GPI services. The return value is sometimes needed by other functions and should be saved. WinTerminate can be called if a thread no longer needs these services. This API can only be called once per thread.

Parameters

ULONG flOptions (input)

The only allowed value is 0L.

Returns

HAB hab

This return value is a handle to an anchor block. The anchor block is a structure which is used by OS/2 to keep track of application specific error information, and the handle is needed for certain other PM functions, such as WinCreateMsgQueue. NULLHANDLE is returned if an error occurred.

Define (C/C++)

#define INCL_WINWINDOWMGR 

or

#define INCL_WIN

or

#define INCL_PM
#include <os2.h>

Sample Code

HAB hab;
ULONG flOptions = 0L;
HMQ hmq;

hab=WinInitialize(flOptions);
hmq=WinCreateMsgQueue(hab, 0L);

See Also

• WinCreateMsgQueue
• WinGetLastError
• WinGetErrorInfo
• WinQueryAnchorBlock
• WinTerminate