使用SendMessage API从Delphi TcxGrid检索信息的常量消息 [英] Constant messages to retrieve information from a Delphi TcxGrid by using SendMessage API

问题描述

我正在尝试使用AutoIt在Delphi开发的应用程序中操纵TcxGrid.
AutoIt有很多自定义库，但是它们中的任何一个都与TcxGrid有关，因为该对象不是标准的Windows对象.我可以使用任何其他IDE或编程语言(C#，C ++，甚至是Delphi)，但我会遇到同样的问题:如何从此控件中检索信息?
基本上是为了与我们使用的其他进程进行通讯:

I'm trying to manipulating a TcxGrid in an application developed in Delphi using AutoIt.
AutoIt have a lot of custom libraries but any of them related with TcxGrid because this object is not a standard Windows object. I could use any other IDE or programming language (C#, C++, even Delphi) but I'll be stuck at the same problem: How to retrieve information from this control?
Basicaly to comunicate with other processes we use:

LRESULT SendMessage(HWND hWnd，UINT Msg，WPARAM wParam，LPARAM lParam)

但是真正的问题是如何知道Delphi对象中使用的常量消息.
有人知道在哪里可以找到用于与TcxGrid对象进行通信的常量吗?我已经考虑过创建一个循环并增加消息值并逐个测试它，但这将花费很长的时间.

其他相关搜索:
Windows文档的SendMessage:
https://docs.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-sendmessage
ComboBox的Windows文档(仅作为示例):
https://docs.microsoft.com/en-us/windows/win32/controls/bumper-combobox-control-reference-messages
类似的疑问1:
从Delphi应用程序访问TcxGrid控件c#使用WinAPI
类似的疑问2:
使用SendMessage API检索ComboBox计数和项目

But the real problem is how to know the constant messages used in Delphi objects.
Anybody have any idea where to find the constants used to communicate with a TcxGrid object? I already considered creating a loop and increasing the message value and testing it one by one, but this will take a loooong time.

Other related searches:
Windows documentation for SendMessage:
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-sendmessage
Windows documentation for a ComboBox (just as example):
https://docs.microsoft.com/en-us/windows/win32/controls/bumper-combobox-control-reference-messages
Similar doubt 1:
Accessing TcxGrid controls from a Delphi application from c# using WinAPI
Similar doubt 2:
Retrieve a ComboBox counts and items by using SendMessage API

推荐答案

1. 仅对源代码的访问将显示所用消息的完整列表.任何旧版本也将是一个很好的解决方案.

1. Only access to source codes will show a complete list of messages used. Any old versions would be a good solution too.

所有Delphi TWinControl 后代组件均支持标准Windows消息，例如 WM _ * (例如， WM_CHAR ， WM_LBUTTONUP 等).Delphi还使用特殊的 CM _ * 消息.消息列表在Delphi源代码中可用.主要模块是 Winapi.Messages 和 Vcl.Controls .

All Delphi TWinControl descendant components support standard Windows messages such as WM_* (eg, WM_CHAR, WM_LBUTTONUP etc). Delphi also uses special CM_* messages. The list of messages is available in the Delphi source. The main modules are Winapi.Messages and Vcl.Controls.

第三方开发者很少添加他们的消息.使用Delphi语言进行数据交换通常不需要这样做.

Third-party developers rarely add their messages. This is usually not required for data exchange within the Delphi language.

1. 最困难的方法是在工作时跟踪窗口发送的所有消息.将 SetWindowsHookEx 函数与参数 WH_GETMESSAGE ， WH_CALLWNDPROC 一起使用.请注意 LPARAM 和 WPARAM 的值.它们还包含重要信息.

1. The hard way is to track all the messages sent by the window when working. Use the SetWindowsHookEx function with parameters WH_GETMESSAGE, WH_CALLWNDPROC. Be mindful of the LPARAM and WPARAM values. They also contain important information.

添加:网格通常使用内置组件( EDIT ， COMBOBOX 等)输入信息.当它们可见时，您也可以向他们发送消息.

Addition: Grids usually use built-in components (EDIT, COMBOBOX etc) to enter information. When they are visible you can also send messages to them.

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