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Add util exercising [GS]etConsoleScreenBufferInfoEx

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Specifically, allow getting and setting window/buffer size/position.
This commit is contained in:
Ryan Prichard 2018-09-16 20:59:52 -07:00
parent 850661d02b
commit 498a9b1a7f
1 changed files with 90 additions and 0 deletions
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90
misc/SetBufInfo.cc Executable file
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#include <windows.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "TestUtil.cc"
static void usage() {
printf("usage: SetBufInfo [-set] [-buf W H] [-win W H] [-pos X Y]\n");
}
int main(int argc, char *argv[]) {
const HANDLE conout = CreateFileW(L"CONOUT$",
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, NULL);
ASSERT(conout != INVALID_HANDLE_VALUE);
bool change = false;
BOOL success;
CONSOLE_SCREEN_BUFFER_INFOEX info = {};
info.cbSize = sizeof(info);
success = GetConsoleScreenBufferInfoEx(conout, &info);
ASSERT(success && "GetConsoleScreenBufferInfoEx failed");
for (int i = 1; i < argc; ) {
std::string arg = argv[i];
if (arg == "-buf" && (i + 2) < argc) {
info.dwSize.X = atoi(argv[i + 1]);
info.dwSize.Y = atoi(argv[i + 2]);
i += 3;
change = true;
} else if (arg == "-pos" && (i + 2) < argc) {
int dx = info.srWindow.Right - info.srWindow.Left;
int dy = info.srWindow.Bottom - info.srWindow.Top;
info.srWindow.Left = atoi(argv[i + 1]);
info.srWindow.Top = atoi(argv[i + 2]);
i += 3;
info.srWindow.Right = info.srWindow.Left + dx;
info.srWindow.Bottom = info.srWindow.Top + dy;
change = true;
} else if (arg == "-win" && (i + 2) < argc) {
info.srWindow.Right = info.srWindow.Left + atoi(argv[i + 1]) - 1;
info.srWindow.Bottom = info.srWindow.Top + atoi(argv[i + 2]) - 1;
i += 3;
change = true;
} else if (arg == "-set") {
change = true;
++i;
} else if (arg == "--help" || arg == "-help") {
usage();
exit(0);
} else {
fprintf(stderr, "error: unrecognized argument: %s\n", arg.c_str());
usage();
exit(1);
}
}
if (change) {
success = SetConsoleScreenBufferInfoEx(conout, &info);
if (success) {
printf("success\n");
} else {
printf("SetConsoleScreenBufferInfoEx call failed\n");
}
success = GetConsoleScreenBufferInfoEx(conout, &info);
ASSERT(success && "GetConsoleScreenBufferInfoEx failed");
}
auto dump = [](const char *fmt, ...) {
char msg[256];
va_list ap;
va_start(ap, fmt);
vsprintf(msg, fmt, ap);
va_end(ap);
trace("%s", msg);
printf("%s\n", msg);
};
dump("buffer-size: %d x %d", info.dwSize.X, info.dwSize.Y);
dump("window-size: %d x %d",
info.srWindow.Right - info.srWindow.Left + 1,
info.srWindow.Bottom - info.srWindow.Top + 1);
dump("window-pos: %d, %d", info.srWindow.Left, info.srWindow.Top);
return 0;
}