SendMessageTimeout WIN64 [英] SendMessageTimeout WIN64

问题描述

我有一个程序，我试图使用SendMessageTimeout将文件名发送到另一个应用程序。 当我运行这个inw WIN32它运行正常，但是当我在WIN64中编译它时，数据在SendMessageTimeout函数期间以某种方式被破坏。 
基本上，我这样做：

I have a program where I am trying to send a filename to another application using SendMessageTimeout.  When I run this inw WIN32 it runs fine, but when I compile it in WIN64 the data somehow gets destroyed during the SendMessageTimeout function.  Basically, I do this:

COPYDATASTRUCT cds;

COPYDATASTRUCT cds;

PDWORD_PTR结果;

PDWORD_PTR result;

char * file =" file.dat";

char *file="file.dat";

cds.dwData = 1;

cds.dwData = 1;

cds.cbData = strlen（file）+1;

cds.cbData = strlen(file)+1;

cds.lpData = file;

cds.lpData = file;

status = SendMessageTimeout（hWnd，WM_COPYDATA，0，（LPARAM）& cds，SMTO_NORMAL，2000，result） ;

status = SendMessageTimeout (hWnd, WM_COPYDATA, 0, (LPARAM) &cds, SMTO_NORMAL, 2000, result);

如果我在WIN32中运行它可以正常工作。 如果我在WIN64中运行它，接收程序将获得一个空字符串，当我从SendMessgeTimeout返回时，cds.lpData已设置为全零（空值）。 

If I run this in WIN32 it works fine.  If I run it in WIN64 the receiving program gets an empty string, and when I return from SendMessgeTimeout the cds.lpData has been set to all zeros (nulls). 

如果我将SendMessageTimeout更改为SendMessage，那么它可以正常工作，但我不想这样做，因为如果接收程序没有运行，那么它将挂起。  有什么想法吗？ 

If I change SendMessageTimeout to SendMessage then it works fine, but I don't want to do that because if the receiving program isn't running then it will hang.  Any ideas? 

感谢您的帮助。

Jim

推荐答案

您好，
欢迎光临。

Hello,
Welcome here.

根据您的描述，我将把这个帖子移到更合适的论坛：Windows桌面SDK 。

Based on your description, I will move this thread to a more appropriate forum: Windows Desktop SDK.

感谢您的理解。

问候，

Thanks for your understanding.
Regards,

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