ASSERT macro

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Evaluates an expression, and displays a diagnostic message if the expression is FALSE. Ignored in retail builds.

Syntax

void ASSERT(
   BOOL cond
);

Parameters

cond

Expression to evaluate.

Return value

This macro does not return a value.

Remarks

In debug builds, if the expression is FALSE, this macro displays a message box with the text of the expression, the name of the source file, and the line number. The user can ignore the assertion, enter the debugger, or quit the application.

Examples

ASSERT(rtStartTime <= rtEndTime);

Requirements

Requirement Value
Header
Wxdebug.h (include Streams.h)

See also

Assert and Breakpoint Macros