如何創建 單一 唯一執行 執行檔 傳 參數 CreateParams paramstr


How to run a single instance of an application
http://delphidabbler.com/articles?article=13
delphi Process Param Create Params paramstr
如何創建 單一 唯一執行 執行檔 傳 參數

本篇教你 傳遞 參數 給 程式 ， 可以 確認 運作 或是 重複的 執行  或是 結束他

首先動作是

傳遞 個  window message WM_COPYDATA

運作如

先找  window 存在?
喚醒她
傳送window message
決定 是否結束他

你可以用 findwindows 找到自己 預留 的接收端

SwitchToPrevInst 你可以 前後找

可以對 其他 window 做 傳送 SendMessage( Wdw, WM_COPYDATA, 0, LPARAM(@CopyData)

Data 必須是 動態產生的  alloc ...



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