• Marc (9/30) Mar 08 2018 How do I define the callback so that it can be used in
• Marc (2/15) Mar 08 2018

Marc <jckj33 gmail.com> writes:

How do I define the callback so that it can be used in 
RegisterWaitForSingleObject()?

I've tried pass as argument:

myFunc
&myFunc
myFunc.ptr

none worked. Here's my code:

extern (C) void OnExited(void* context, BOOLEAN isTimeOut);

extern(Windows):
	BOOL RegisterWaitForSingleObject(
	  PHANDLE             phNewWaitObject,
	  HANDLE              hObject,
	  WAITORTIMERCALLBACK Callback,
	  PVOID               Context,
	  ULONG               dwMilliseconds,
	  ULONG               dwFlags
	);

Function call:

 RegisterWaitForSingleObject(&hWait, hProcess, &OnExited, NULL, 
 INFINITE, WT_EXECUTEONLYONCE);

Error:

 function a.RegisterWaitForSingleObject(void** phNewWaitObject, 
 void* hObject, extern (Windows) void function(void*, bool) 
 Callback, void* Context, uint dwMilliseconds, uint dwFlags) is 
 not callable using argument types (void**, void*, extern (C) 
 void function(void* context, bool isTimeOut), typeof(null), 
 uint, uint)
 a.d(38):        cannot pass argument & OnExited of type extern 
 (C) void function(void* context, bool isTimeOut) to parameter 
 extern (Windows) void function(void*, bool) Callback

Marc <jckj33 gmail.com> writes:

On Thursday, 8 March 2018 at 17:06:05 UTC, Marc wrote:
 How do I define the callback so that it can be used in 
 RegisterWaitForSingleObject()?

 I've tried pass as argument:

 myFunc
 &myFunc
 myFunc.ptr

 none worked. Here's my code:

[...]

 Function call:

 [...]

 Error:

 [...]


Solved! I shall rather use extern (Windows) not extern(C):

extern (Windows) void OnExited(void* context, BOOLEAN isTimeOut);