WinAPI - 获取用于绘图的可滚动框架

我正在编写一种算法，该算法通过较冷的身体计算后续工作作为夏季工作。算法本身已经完成，我开始研究制作一个简单的 C++GUI，您可以在其中为特定的冷却器组合创建连续性，并能够事先查看它。这不是我以前做过的任何事情。

我有一些相当简单的工作，现在我直接在主窗口上绘制序列的外观。 在同一个主窗口中将其绘制到可滚动的"框架"中有什么困难吗？ 现在，更大的组合太大而无法容纳在同一屏幕上，仅仅使窗口更大是不够的。 感谢您的任何帮助！

我尝试使用样式"WS_VSCROLL"制作静态并使用"hdc = GetDC(hWndNewStatic)"，我花了一小段时间来处理绘图，然后它再次不起作用。滚动条不起作用。

示例程序图片

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wcex = {};
wcex.cbClsExtra = 0;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.cbWndExtra = 0;
wcex.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE (IDI_ICON));
wcex.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE (IDI_ICON));
wcex.hInstance = hInstance;
wcex.lpfnWndProc = WndProc;
wcex.lpszClassName = TEXT("WinApp");
wcex.lpszMenuName = NULL;
wcex.style = CS_HREDRAW | CS_VREDRAW;
if (!RegisterClassEx(&wcex))
{
MessageBox(NULL, TEXT("RegisterClassEx Failed!"), TEXT("Error"), MB_ICONERROR);
return EXIT_FAILURE;
}
HWND hWnd = CreateWindow(
TEXT("WinApp"), TEXT("SeqGen"),
WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
CW_USEDEFAULT, CW_USEDEFAULT, WINDOW_WIDTH, WINDOW_HEIGHT,
NULL, NULL, hInstance, NULL
);
if (!hWnd)
{
MessageBox(NULL, TEXT("CreateWindow Failed!"), TEXT("Error"), MB_ICONERROR);
return EXIT_FAILURE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
hdc = GetDC(hWnd);
// Messages
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
if (IsDialogMessage(hWnd, &msg))
{}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return EXIT_SUCCESS;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
LPCSTR moduleValue;
static int index {};
static unsigned module {0};
static bool draw {false};
switch (msg)
{
case WM_CREATE:
hWndStatic = CreateWindow(
TEXT("Static"), TEXT("Tube rows"),
WS_CHILD | WS_VISIBLE,
30, 20, 100, 24,
hWnd, NULL, NULL, NULL
);
hWndStatic = CreateWindow(
TEXT("Static"), TEXT("Water passes"),
WS_CHILD | WS_VISIBLE,
130, 20, 100, 24,
hWnd, NULL, NULL, NULL
);
hWndStatic = CreateWindow(
TEXT("Static"), TEXT("Multiples"),
WS_CHILD | WS_VISIBLE,
230, 20, 100, 24,
hWnd, NULL, NULL, NULL
);
hWndrr = CreateWindowEx(
WS_EX_CLIENTEDGE, TEXT("Edit"), TEXT(""),
WS_CHILD | WS_VISIBLE | WS_TABSTOP,
30, 50, 50, 24,
hWnd, NULL, NULL, NULL
);
hWndvv = CreateWindowEx(
WS_EX_CLIENTEDGE, TEXT("Edit"), TEXT(""),
WS_CHILD | WS_VISIBLE | WS_TABSTOP,
130, 50, 50, 24,
hWnd, NULL, NULL, NULL
);
hWndN = CreateWindowEx(
WS_EX_CLIENTEDGE, TEXT("Edit"), TEXT("0"),
WS_CHILD | WS_VISIBLE | WS_TABSTOP,
230, 50, 50, 24,
hWnd, NULL, NULL, NULL
);
hWndList = CreateWindow(
TEXT("ListBox"), TEXT(""),
WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_AUTOVSCROLL | WS_BORDER | LBS_NOTIFY,
20, 150, TEXTBOX_WIDTH, TEXTBOX_HEIGHT,
hWnd, (HMENU) LST_RESULT, NULL, NULL
);

hWndCreateall = CreateWindow(
TEXT("Button"), TEXT("Create all DIR"),
WS_CHILD | WS_VISIBLE,
50, 90, 100, 24,
hWnd, (HMENU) BTN_CREATEALL, NULL, NULL
);   
hWndButton = CreateWindow(
TEXT("Button"), TEXT("Create DIR"),
WS_CHILD | WS_VISIBLE | WS_TABSTOP,
200, 90, 100, 24,
hWnd, (HMENU) BTN_CREATE, NULL, NULL
);   
break;
case WM_COMMAND:
switch (HIWORD(wParam))
{
case LBN_SELCHANGE:
if (LOWORD(wParam) == LST_RESULT)
{
index = SendMessage(hWndList, LB_GETCURSEL, 0, 0);
if (index >= 0)
{
module = 0;
moduleValue = (to_string(module).c_str());
SetWindowText(hWndStaticModule, moduleValue);
draw = true;
RedrawWindow(hWnd, 0, 0, RDW_INVALIDATE);
}
}
break;
case BN_CLICKED:
switch (LOWORD(wParam))
{
case BTN_CREATE:
--stuff for creating combination--
break;
case BTN_CREATEALL:
--stuff for creating all possible combination--
break;
}
break;
default:
break;
}
break;
case WM_PAINT:
if (draw)
{
--function for drawing stuff on main window--
draw = false;
}
UpdateWindow(hWnd);
break;
case WM_DESTROY:
PostQuitMessage(EXIT_SUCCESS);
default:
return DefWindowProc(hWnd, msg, wParam, lParam);
}
return FALSE;
}