WinAPI_Basic_templates/WinAPISamplerTimer/main.cpp - main - sxfour/cpp_winapi_all_projects

WinAPI_Basic_templates/WinAPISamplerTimer/main.cpp
83 строки3 KB
Egor Levashov
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18 май 2024, 02:36
18 май 2024, 02:3655ff89c
#pragma comment(linker,"\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")

#include <iomanip>
#include <sstream>
#include <Windows.h>
#include <CommCtrl.h>

#include <iostream>
#include <format>

HWND window = nullptr;
HWND staticText = nullptr;
HWND button = nullptr;
UINT_PTR timer = 0;
WNDPROC defWndProc = nullptr;

LRESULT OnWindowClose(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
	PostQuitMessage(0);

	return CallWindowProc(defWndProc, hWnd, message, wParam, lParam);
}

void CALLBACK OnTimerTick(HWND hWnd, UINT message, UINT_PTR idEvent, DWORD time) {
	if (idEvent == timer) {
		static auto counter = 0;
		std::wstringstream stream;
		stream << std::fixed << std::setprecision(1) << static_cast<double>(++counter) / 10;

		std::cout << std::format("�������� �������� -> {} � double -> ", counter);
		std::cout << std::fixed << std::setprecision(1) << static_cast<double>(counter) / 10 << std::endl;

		SendMessage(staticText, WM_SETTEXT, 0, reinterpret_cast<LPARAM>(stream.str().c_str()));
	}
}

LRESULT ChangeStaticTextColor(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
	auto result = CallWindowProc(defWndProc, hWnd, message, wParam, lParam);
	SetTextColor(reinterpret_cast<HDC>(wParam), RGB(30, 144, 255));

	return result;
}

LRESULT OnButtonClick(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
	static auto enableTimer = false;
	enableTimer = !enableTimer;
	SendMessage(button, WM_SETTEXT, 0, reinterpret_cast<LPARAM>(enableTimer ? L"Stop" : L"Start"));
	if (enableTimer) timer = SetTimer(nullptr, 0, 100, OnTimerTick);
	else KillTimer(nullptr, timer);
	return CallWindowProc(defWndProc, hWnd, message, wParam, lParam);
}

LRESULT WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
	if (message == WM_CLOSE && hWnd == window) {
		return OnWindowClose(hWnd, message, wParam, lParam);
	}
	if (message == WM_COMMAND && reinterpret_cast<HWND>(lParam) == button) {
		return OnButtonClick(hWnd, message, wParam, lParam);
	}
	if (message == WM_CTLCOLORSTATIC && reinterpret_cast<HWND>(lParam) == staticText) {
		return ChangeStaticTextColor(hWnd, message, wParam, lParam);
	}
	return CallWindowProc(defWndProc, hWnd, message, wParam, lParam);
}

int main() {
	SetConsoleCP(1251);
	SetConsoleOutputCP(1251);

	window = CreateWindowEx(0, WC_DIALOG, L"Timer example", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 246, 176, nullptr, nullptr, nullptr, nullptr);
	staticText = CreateWindowEx(0, WC_STATIC, L"0.0", WS_CHILD | WS_VISIBLE, 10, 10, 210, 70, window, nullptr, nullptr, nullptr);
	button = CreateWindowEx(0, WC_BUTTON, L"Start", WS_CHILD | WS_VISIBLE, 10, 100, 75, 25, window, nullptr, nullptr, nullptr);

	defWndProc = reinterpret_cast<WNDPROC>(SetWindowLongPtr(window, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(WndProc)));
	SendMessage(staticText, WM_SETFONT, reinterpret_cast<WPARAM>(CreateFont(static_cast<int>(-48 / 72.0f * GetDeviceCaps(GetDC(window), LOGPIXELSY)), 0, 0, 0, FW_NORMAL, true, false, false, 0, OUT_OUTLINE_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, DEFAULT_PITCH | FF_DONTCARE, L"Arial")), true);
	ShowWindow(window, SW_SHOW);

	MSG message = { 0 };
	while (GetMessage(&message, nullptr, 0, 0)) {
		DispatchMessage(&message);
	}

	return 0;
}