From d0d5af28bd64ce74bf67f314db54f9d3e2fff73d Mon Sep 17 00:00:00 2001
From: bryan <bryan@veltar.systems>
Date: Thu, 27 Aug 2026 14:20:38 +0200
Subject: Copy with WM_COPY only; do not inject Ctrl+C.

SendInput of Ctrl+C typed a stray c or sent SIGINT into
Alacritty and Zed. Those apps ignore WM_COPY, so they are
left alone.
---
 selc.c | 65 ++++-------------------------------------------------------------
 1 file changed, 4 insertions(+), 61 deletions(-)

(limited to 'selc.c')

diff --git a/selc.c b/selc.c
index 1b8eb86..b32bf74 100644
--- a/selc.c
+++ b/selc.c
@@ -42,9 +42,7 @@ static void attachio(int force);
 static int samewin(HWND a, HWND b);
 static int isclient(HWND hw, POINT pt);
 static int ispass(HWND hw);
-static int skipctrlc(HWND hw);
 static int goodsel(const struct Sel *s);
-static void sendctrlc(void);
 static void docopy(void);
 static void request(int kbd);
 static LRESULT CALLBACK mouseproc(int code, WPARAM wp, LPARAM lp);
@@ -131,24 +129,6 @@ ispass(HWND hw)
 	return (style & ES_PASSWORD) != 0;
 }
 
-static int
-skipctrlc(HWND hw)
-{
-	char cls[64];
-	HWND root;
-	int i;
-
-	root = GetAncestor(hw, GA_ROOT);
-	if (!root)
-		root = hw;
-	if (!GetClassNameA(root, cls, (int)sizeof(cls)))
-		return 0;
-	for (i = 0; i < (int)LEN(nocctrlc); i++)
-		if (strcmp(cls, nocctrlc[i]) == 0)
-			return 1;
-	return 0;
-}
-
 static int
 goodsel(const struct Sel *s)
 {
@@ -163,36 +143,6 @@ goodsel(const struct Sel *s)
 	return 1;
 }
 
-static void
-sendctrlc(void)
-{
-	INPUT in[4];
-	int n, ctrl;
-
-	ctrl = (GetAsyncKeyState(VK_CONTROL) & 0x8000) != 0;
-	memset(in, 0, sizeof(in));
-	n = 0;
-	if (!ctrl) {
-		in[n].type = INPUT_KEYBOARD;
-		in[n].ki.wVk = VK_CONTROL;
-		n++;
-	}
-	in[n].type = INPUT_KEYBOARD;
-	in[n].ki.wVk = 'C';
-	n++;
-	in[n].type = INPUT_KEYBOARD;
-	in[n].ki.wVk = 'C';
-	in[n].ki.dwFlags = KEYEVENTF_KEYUP;
-	n++;
-	if (!ctrl) {
-		in[n].type = INPUT_KEYBOARD;
-		in[n].ki.wVk = VK_CONTROL;
-		in[n].ki.dwFlags = KEYEVENTF_KEYUP;
-		n++;
-	}
-	SendInput((UINT)n, in, sizeof(INPUT));
-}
-
 static void
 docopy(void)
 {
@@ -219,19 +169,12 @@ docopy(void)
 	seq = GetClipboardSequenceNumber();
 	SendMessageTimeoutA(foc, WM_COPY, 0, 0,
 	    SMTO_ABORTIFHUNG | SMTO_NORMAL, COPYTO, &dummy);
-	if (GetClipboardSequenceNumber() != seq) {
-		if (verbose)
+	if (verbose) {
+		if (GetClipboardSequenceNumber() != seq)
 			fprintf(stderr, "selc: WM_COPY\n");
-		goto done;
-	}
-	if (skipctrlc(foc) || skipctrlc(fg)) {
-		if (verbose)
-			fprintf(stderr, "selc: skip Ctrl+C\n");
-		goto done;
+		else
+			fprintf(stderr, "selc: no copy\n");
 	}
-	sendctrlc();
-	if (verbose)
-		fprintf(stderr, "selc: Ctrl+C\n");
 done:
 	if (attached)
 		AttachThreadInput(mine, tid, FALSE);
-- 
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