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WinQuerySwitchHandle: Difference between revisions

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Returns of [[HSWITCH]] with values of the switch handle or zero with an error occurring.
Returns of [[HSWITCH]] with values of the switch handle or zero with an error occurring.


Possible returns from [[OS2 API:WinGetLastError|WinGetLastError]]:
Possible returns from [[WinGetLastError]]:
* [[PM Error Codes#PMERR_INVALID_PARAMETERS|PMERR_INVALID_PARAMETERS]]
* [[PM Error Codes#PMERR_INVALID_PARAMETERS|PMERR_INVALID_PARAMETERS]]
* [[PM Error Codes#PMERR_INVALID_PROCESS_ID|PMERR_INVALID_PROCESS_ID]]
* [[PM Error Codes#PMERR_INVALID_PROCESS_ID|PMERR_INVALID_PROCESS_ID]]

Revision as of 17:58, 4 December 2019

Get a task list entry handle.

Syntax

WinQuerySwitchHandle (wndwHndl, processId)

Parameters

wndwHndl - HWND - input
Window handle or NULLHANDLE if specifying with processId.
processId - PID - input
Process identifier in the task list or zero if using the window handle.

Returns

Returns of HSWITCH with values of the switch handle or zero with an error occurring.

Possible returns from WinGetLastError:

Define (C/C++)

INCL_WINSWITCHLIST or INCL_WIN or INCL_PM

Calling Convention

Cdecl32

Example Code

HWND    wndwHndl;
PID     processId;
HSWITCH rc;
...
rc = WinQuerySwitchHandle(wndwHndl, NULL);
...

OR

...
rc = WinQuerySwitchHandle(NULL, processId);
...

Related Functions

Notes

If wndwHndl and processId are used, they must be correct