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glfw: README: update usage example

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2023-01-08 18:18:26 -07:00 • committed by Stephen Gutekanst
parent e9ba368443
commit c244a7b72e
1 changed files with 15 additions and 3 deletions
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README.md
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@ -102,17 +102,29 @@ Now in your code you may import and use GLFW:
```zig ```zig
const glfw = @import("glfw"); const glfw = @import("glfw");
/// Default GLFW error handling callback
fn errorCallback(error_code: glfw.Error, description: [:0]const u8) void {
std.log.err("glfw: {}: {s}\n", .{ error_code, description });
}
pub fn main() !void { pub fn main() !void {
try glfw.init(.{}); glfw.setErrorCallback(errorCallback);
if (!glfw.init(.{})) {
std.log.err("failed to initialize GLFW: {?s}", .{glfw.getErrorString()});
std.process.exit(1);
}
defer glfw.terminate(); defer glfw.terminate();
// Create our window // Create our window
const window = try glfw.Window.create(640, 480, "Hello, mach-glfw!", null, null, .{}); const window = glfw.Window.create(640, 480, "Hello, mach-glfw!", null, null, .{}) orelse {
std.log.err("failed to create GLFW window: {?s}", .{glfw.getErrorString()});
std.process.exit(1);
};
defer window.destroy(); defer window.destroy();
// Wait for the user to close the window. // Wait for the user to close the window.
while (!window.shouldClose()) { while (!window.shouldClose()) {
try glfw.pollEvents(); glfw.pollEvents();
} }
} }
``` ```