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only stackalloc the getwindowtitle buffer when length is small.

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Hongtao Zhang 2024-12-27 12:57:17 -06:00
parent 02a45661c4
commit 9350e82b77
1 changed files with 2 additions and 2 deletions
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4
Flow.Launcher.Plugin/SharedCommands/ShellCommand.cs
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@ -54,12 +54,12 @@ namespace Flow.Launcher.Plugin.SharedCommands
{
var capacity = PInvoke.GetWindowTextLength(hwnd) + 1;
int length;
Span<char> buffer = stackalloc char[capacity];
Span<char> buffer = capacity < 1024 ? stackalloc char[capacity] : new char[capacity];
fixed (char* pBuffer = buffer)
{
// If the window has no title bar or text, if the title bar is empty,
// or if the window or control handle is invalid, the return value is zero.
length = PInvoke.GetWindowText(hwnd, (PWSTR)pBuffer, capacity);
length = PInvoke.GetWindowText(hwnd, pBuffer, capacity);
}
return buffer[..length].ToString();