GLFW - 无法打开窗口
在我寻找跨平台框架/库的过程中,GLFW 被多次提及。所以,我决定尝试一下。现在,似乎我什至无法启动窗口。 :-/
#include <cstdlib>
#include <ctime>
#include <gl/glfw.h>
int main(int argc, char *argv[])
{
int running = GL_TRUE;
srand(time(NULL));
if (!glfwInit())
exit(EXIT_FAILURE);
if (!glfwOpenWindow(300, 300, 0, 0, 0, 0, 0, 0, GLFW_WINDOW))
{
glfwTerminate();
exit(EXIT_FAILURE);
}
while (running)
{
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(rand() % 255 + 1, rand() % 255 + 1, rand() % 255 + 1, 0);
glfwSwapBuffers();
running = !glfwGetKey(GLFW_KEY_ESC) && glfwGetWindowParam(GLFW_OPENED);
}
glfwTerminate();
exit(EXIT_SUCCESS);
}
我在 MVC++ 2010 中输入了这个,链接了头文件和 2 个 lib 文件(它有 1 个 DLL 文件,所以我把它扔到了 SysWOW64 文件夹中),然后我得到了这些错误:
1>------ Build started: Project: glfwTest, Configuration: Debug Win32 ------
1> test.cpp
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(8): warning C4244: 'argument' : conversion from 'time_t' to 'unsigned int', possible loss of data
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(22): warning C4244: 'argument' : conversion from 'int' to 'GLclampf', possible loss of data
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(22): warning C4244: 'argument' : conversion from 'int' to 'GLclampf', possible loss of data
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(22): warning C4244: 'argument' : conversion from 'int' to 'GLclampf', possible loss of data
1>test.obj : error LNK2019: unresolved external symbol __imp__glClearColor@16 referenced in function _main
1>GLFW.lib(win32_window.obj) : error LNK2001: unresolved external symbol __imp__glClearColor@16
1>test.obj : error LNK2019: unresolved external symbol __imp__glClear@4 referenced in function _main
1>GLFW.lib(window.obj) : error LNK2001: unresolved external symbol __imp__glClear@4
1>GLFW.lib(win32_window.obj) : error LNK2001: unresolved external symbol __imp__glClear@4
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglGetProcAddress@4 referenced in function _initWGLExtensions
1>GLFW.lib(win32_glext.obj) : error LNK2001: unresolved external symbol __imp__wglGetProcAddress@4
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglMakeCurrent@8 referenced in function _createWindow
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglCreateContext@4 referenced in function _createContext
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglDeleteContext@4 referenced in function _destroyWindow
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__glGetFloatv@8 referenced in function __glfwPlatformSetWindowSize
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__glGetIntegerv@8 referenced in function __glfwPlatformSetWindowSize
1>GLFW.lib(glext.obj) : error LNK2001: unresolved external symbol __imp__glGetIntegerv@8
1>GLFW.lib(glext.obj) : error LNK2019: unresolved external symbol __imp__glGetString@4 referenced in function __glfwParseGLVersion
1>c:\users\andrew\documents\visual studio 2010\Projects\glfwTest\Debug\glfwTest.exe : fatal error LNK1120: 9 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
我理解前几个随机的颜色,但之后的颜色对我来说毫无意义。知道这有什么问题吗?
我很确定我已经正确链接了库。我将它们放入 C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib 目录 甚至将它们链接到我的 C:\SDK\GLFW\glfw-2.7.bin.WIN32\lib-msvc100\debug 目录。
GLFW 包是一个 .zip 文件,所以我只是将其解压缩到我的默认 SDK 文件夹(用于我的所有 API 和其他内容)。所以 C:\SDK\GLFW 是我的 GLFW 默认值。
As my hunt for a cross-platform framework/library went in progress, GLFW was mentioned many times. So, I decided to try it out. Now, it seems as though I can't even init a window. :-/
#include <cstdlib>
#include <ctime>
#include <gl/glfw.h>
int main(int argc, char *argv[])
{
int running = GL_TRUE;
srand(time(NULL));
if (!glfwInit())
exit(EXIT_FAILURE);
if (!glfwOpenWindow(300, 300, 0, 0, 0, 0, 0, 0, GLFW_WINDOW))
{
glfwTerminate();
exit(EXIT_FAILURE);
}
while (running)
{
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(rand() % 255 + 1, rand() % 255 + 1, rand() % 255 + 1, 0);
glfwSwapBuffers();
running = !glfwGetKey(GLFW_KEY_ESC) && glfwGetWindowParam(GLFW_OPENED);
}
glfwTerminate();
exit(EXIT_SUCCESS);
}
I typed this in MVC++ 2010, linked the header, and 2 lib files (and it had 1 DLL file, so I threw that into the SysWOW64 folder), and I get these errors:
1>------ Build started: Project: glfwTest, Configuration: Debug Win32 ------
1> test.cpp
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(8): warning C4244: 'argument' : conversion from 'time_t' to 'unsigned int', possible loss of data
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(22): warning C4244: 'argument' : conversion from 'int' to 'GLclampf', possible loss of data
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(22): warning C4244: 'argument' : conversion from 'int' to 'GLclampf', possible loss of data
1>c:\users\andrew\documents\visual studio 2010\projects\glfwtest\glfwtest\test.cpp(22): warning C4244: 'argument' : conversion from 'int' to 'GLclampf', possible loss of data
1>test.obj : error LNK2019: unresolved external symbol __imp__glClearColor@16 referenced in function _main
1>GLFW.lib(win32_window.obj) : error LNK2001: unresolved external symbol __imp__glClearColor@16
1>test.obj : error LNK2019: unresolved external symbol __imp__glClear@4 referenced in function _main
1>GLFW.lib(window.obj) : error LNK2001: unresolved external symbol __imp__glClear@4
1>GLFW.lib(win32_window.obj) : error LNK2001: unresolved external symbol __imp__glClear@4
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglGetProcAddress@4 referenced in function _initWGLExtensions
1>GLFW.lib(win32_glext.obj) : error LNK2001: unresolved external symbol __imp__wglGetProcAddress@4
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglMakeCurrent@8 referenced in function _createWindow
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglCreateContext@4 referenced in function _createContext
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__wglDeleteContext@4 referenced in function _destroyWindow
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__glGetFloatv@8 referenced in function __glfwPlatformSetWindowSize
1>GLFW.lib(win32_window.obj) : error LNK2019: unresolved external symbol __imp__glGetIntegerv@8 referenced in function __glfwPlatformSetWindowSize
1>GLFW.lib(glext.obj) : error LNK2001: unresolved external symbol __imp__glGetIntegerv@8
1>GLFW.lib(glext.obj) : error LNK2019: unresolved external symbol __imp__glGetString@4 referenced in function __glfwParseGLVersion
1>c:\users\andrew\documents\visual studio 2010\Projects\glfwTest\Debug\glfwTest.exe : fatal error LNK1120: 9 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I understand the first few with the random colors, but the ones after that make no sense to me. Any idea what's wrong with this?
I'm pretty sure that I have linked the libs correctly. I place them into the
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib directory
and even linked them to my
C:\SDK\GLFW\glfw-2.7.bin.WIN32\lib-msvc100\debug directory.
The GLFW package was a .zip file, so I just extracted it to my default SDK folder (for all my APIs and other stuff). So the C:\SDK\GLFW is my default for GLFW.
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您需要链接到
opengl32.lib
。为此,如下图所示,转到
Project Setting
,然后Linker >输入>其他依赖项
并在其中添加opengl32.lib
(使用;
来分隔不同的库)。请注意,您实际上不需要在任何地方都有
opengl32.lib
文件。 Visual Studio 知道在哪里可以找到它。编辑:我应该注意,除了添加
之外,您不需要执行任何操作opengl32.lib
。其他的东西就无关紧要了。此外,如果两者都存在,请尝试交换顺序,这在某些情况下很重要。You need to link to
opengl32.lib
.For that, as pictured below, go to
Project Setting
and thenLinker > input > Additional Dependencies
and addopengl32.lib
there (use;
to separate different libs).Note that you don't actually need to have
opengl32.lib
file anywhere. Visual Studio knows where to find it.Edit: I should note that you don't need to do anything except adding
opengl32.lib
. That other stuff is irrelevant. Additionally, if both are present, try swapping the order, which matters in some cases.