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Updated behavior so VkKeyScan codes outside of the range 0-255 are ignored, fixing a crash in powershell

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This commit is contained in:
Bryan Roe
2019-08-15 13:35:44 -07:00
parent e3ec71f5e8
commit afa2ad1723
1 changed files with 8 additions and 4 deletions
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12
modules/win-terminal.js
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@@ -397,7 +397,11 @@ function windows_terminal() {
}
}
}
this._WriteCharacter = function (key, bControlKey) {
this._WriteCharacter = function (key, bControlKey)
{
var scanCode = this._user32.VkKeyScanA(key).Val;
if (scanCode < 0 || scanCode > 255) { return; }
var rec = GM.CreateVariable(20);
rec.Deref(0, 2).toBuffer().writeUInt16LE(KEY_EVENT); // rec.EventType
rec.Deref(4, 4).toBuffer().writeUInt16LE(1); // rec.Event.KeyEvent.bKeyDown
@@ -405,11 +409,11 @@ function windows_terminal() {
rec.Deref(14, 1).toBuffer()[0] = key; // rec.Event.KeyEvent.uChar.AsciiChar
rec.Deref(8, 2).toBuffer().writeUInt16LE(1); // rec.Event.KeyEvent.wRepeatCount
rec.Deref(10, 2).toBuffer().writeUInt16LE(this._user32.VkKeyScanA(key).Val); // rec.Event.KeyEvent.wVirtualKeyCode
rec.Deref(12, 2).toBuffer().writeUInt16LE(this._user32.MapVirtualKeyA(this._user32.VkKeyScanA(key).Val, MAPVK_VK_TO_VSC).Val);
rec.Deref(12, 2).toBuffer().writeUInt16LE(this._user32.MapVirtualKeyA(scanCode, MAPVK_VK_TO_VSC).Val);
var dwWritten = GM.CreateVariable(4);
if (this._kernel32.WriteConsoleInputA(this._stdinput, rec, 1, dwWritten).Val == 0) { return (false); }
rec.Deref(4, 4).toBuffer().writeUInt16LE(0); // rec.Event.KeyEvent.bKeyDown
return (this._kernel32.WriteConsoleInputA(this._stdinput, rec, 1, dwWritten).Val != 0);
}